Oc says that Reddit is vulnerable to such coordinated influence operations, which can push content up or bury it quickly.
Finding these optimization opportunities can itself be a significant undertaking. It requires end-to-end understanding of the spec to identify which behaviors are observable and which can safely be elided. Even then, whether a given optimization is actually spec-compliant is often unclear. Implementers must make judgment calls about which semantics they can relax without breaking compatibility. This puts enormous pressure on runtime teams to become spec experts just to achieve acceptable performance.，这一点在同城约会中也有详细论述
。51吃瓜对此有专业解读
// 记录答案：栈顶就是「当前元素右侧第一个更大值」（易错点3：别写反判断），这一点在91视频中也有详细论述
* 时间复杂度：O(n)，空间复杂度：O(n)